I've got various 110mm soil fittings destined for the rubbish tip where the rubber's perished. Thinking they might do for a tubular heat exchanger if I ditched the rubber and just CT1'd (a one tube fix all in the UK) them onto the tubes?
Is longer better with a tubular heat exchanger?
I'm not sure what inlet outlet is which as in what goes inside / outside?
Tube Inlet - In the bathroom, takes in warm moist air?
Tube Outlet - Vents externally in soffit?
Shell Outlet - ?